A man stands next to a large searchlight on a platform on top of Echo Mountain in Los Angeles, California. A reflection of the Echo Mountain House is visible in the lens of the searchlight. The landscape below is largely undeveloped farmland.

A view of the power station on Echo Mountain, Los Angeles County. A man is standing on the front porch of the powerhouse. The cables are seen in the lower right portion of the image. On the top of the building a man is seen reaching up to the...